1. Bluetooth version: Bluetooth v5.0
2. Transmission distance: 10 meters
3. Battery charge: 400mAh / per ear: 35mAh
4. Playback time: 2-2.5 hours
5. Headset function: adjust volume, switch songs, answer incoming calls, refuse to answer calls, hang up, Bluetooth playback, hands-free call, phone replay, Bluetooth reconnection, voice prompt, power display, magnetic charging
6. Speaker: angular 10mm
7. Sensitivity: 108 ±5dB
8. Impedance: 32 Ω
9. Frequency response: 20-20000 Hz
10. Rated power: 15mW × 2
11. Support protocol: HSP/HFP/A2DP/AVRCP
12. Headset color: black / white (2 colors in total)
13. Headset: high 3.9 CM long 1.8CM wide 2.2 CM